Fencing
Gbogbo ọrọ náà
A fence is more than a line around a field. It decides where animals graze, keeps the right animals in and the wrong ones out, protects young crops from straying cattle, and lets a farmer rest one paddock while another is grazed. A good fence pays for itself in saved crops and healthier pasture; a poor one lets stock wander, damage neighbours' land and injure themselves on loose wire.
In this lesson you will learn how fence posts are treated to make them last, how a post-and-wire fence is built and strained, and which type of fence suits which job, from a cheap living hedge to a powerful electric line. You will also see how hedges and windbreaks do double duty, marking a boundary while sheltering crops and soil from the wind.
Ebumnobi
- (a) describe the treatment of fencing posts, methods of fence construction, types of fence suitable for different purposes, the use of hedges and windbreaks.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Fencing. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Why is a wooden fence post usually treated before it is used? A. To make it heavier B. To prevent rot and insect damage C. To make it conduct electricity D. To change its colour Answer: B
- Which posts in a wire fence take the full tension of the wire? A. The intermediate posts B. The straining (corner and end) posts C. The droppers D. The stay wires Answer: B
- A farmer wants to move cattle to a fresh strip of grass each day. Which fence is most suitable? A. A stone wall B. A permanent post-and-wire fence C. A temporary electric fence D. A thorn hedge Answer: C
- What is the main purpose of a windbreak on a farm? A. To increase the wind speed over crops B. To slow the wind and shelter crops and soil C. To provide shade only D. To drain water from the soil Answer: B
- A rectangular field is 20 m by 10 m. How long is the perimeter? A. 30 m B. 60 m C. 200 m D. 100 m Answer: B
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Fencing? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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